Bump javaparser-core from 3.15.21 to 3.23.1

Bumps [javaparser-core](https://github.com/javaparser/javaparser) from 3.15.21 to 3.23.1.
- [Release notes](https://github.com/javaparser/javaparser/releases)
- [Changelog](https://github.com/javaparser/javaparser/blob/master/changelog.md)
- [Commits](javaparser/javaparser@javaparser-parent-3.15.21...javaparser-parent-3.23.1)

---
updated-dependencies:
- dependency-name: com.github.javaparser:javaparser-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

build.gradle

@@ -20,7 +20,7 @@ repositories {
 
 // Gradle dependencies can also sourced from maven central, using the same coordinates (group/name/version).
 dependencies {
-    implementation group: 'com.github.javaparser', name: 'javaparser-core', version: '3.15.21'
+    implementation group: 'com.github.javaparser', name: 'javaparser-core', version: '3.23.1'
     testCompile group: 'junit', name: 'junit', version: '4.12'
 }